/* -*- Mode: C++ -*- */
/*
* libopenraw - ifdfile.h
*
* Copyright (C) 2006-2015 Hubert Figuiere
*
* This library is free software: you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*/
#ifndef OR_INTERNALS_IFD_FILE_H_
#define OR_INTERNALS_IFD_FILE_H_
#include <stdint.h>
#include <sys/types.h>
#include <vector>
#include <libopenraw/consts.h>
#include "rawfile.hpp"
#include "io/stream.hpp"
#include "ifd.hpp"
#include "rawcontainer.hpp"
#include "ifddir.hpp"
#include "makernotedir.hpp"
namespace OpenRaw {
class MetaValue;
class RawData;
namespace Internals {
class IfdFileContainer;
/** @brief generic IFD based raw file. */
class IfdFile : public OpenRaw::RawFile {
#if defined(IN_TESTSUITE)
public:
friend class ::Test; // for testing
#endif
protected:
IfdFile(const IO::Stream::Ptr &s, Type _type,
bool instantiateContainer = true);
virtual ~IfdFile();
/** list the thumbnails in the IFD
* @retval list the list of thumbnails
* @return the error code. OR_ERROR_NOT_FOUND if no
* thumbnail are found.
*/
virtual ::or_error _enumThumbnailSizes(
std::vector<uint32_t> &list) override;
/** locate the thumnail in the IFD
* @param dir the IfdDir where to locate the thumbnail
* @return the error code. OR_ERROR_NOT_FOUND if the
* thumbnail are not found.
*/
virtual ::or_error _locateThumbnail(const IfdDir::Ref &dir,
std::vector<uint32_t> &list);
/** load the compressed rawdata from a standard location in an IFD
* @param data the data storage
* @param dir the IFD
* @return the error code.
*/
::or_error _getRawDataFromDir(RawData &data, const IfdDir::Ref &dir);
/** Get the JPEG thumbnail offset from dir.
* @param dir the IFD to get the thumbnail from
* @param len the length of the JPEG stream. 0 is not valid.
* @return the offset. 0 is not valid.
*/
virtual uint32_t _getJpegThumbnailOffset(const IfdDir::Ref &dir,
uint32_t &len);
IO::Stream::Ptr m_io; /**< the IO handle */
IfdFileContainer *m_container; /**< the real container */
virtual RawContainer *getContainer() const override;
virtual IfdDir::Ref _locateCfaIfd() = 0;
virtual IfdDir::Ref _locateMainIfd() = 0;
virtual IfdDir::Ref _locateExifIfd();
virtual MakerNoteDir::Ref _locateMakerNoteIfd();
virtual void _identifyId() override;
virtual MetaValue *_getMetaValue(int32_t meta_index) override;
/** Translate the compression type from the tiff type (16MSB)
* to the RAW specific type if needed (16MSB)
* @param tiffCompression the 16 bits value from TIFF
* @return the actually value. Anything >= 2^16 is specific the RAW type
*/
virtual uint32_t _translateCompressionType(
IFD::TiffCompress tiffCompression);
/** Unpack the data
* @param bpc bits per components
* @param compression the compression type
* @param x the width
* @param y the height
* @param offset the offset of the data
* @param byte_length the amount of data
* @return error code
*/
virtual ::or_error _unpackData(uint16_t bpc, uint32_t compression,
RawData &data, uint32_t x, uint32_t y,
uint32_t offset, uint32_t byte_length);
/** access the corresponding IFD. Will locate them if needed */
const IfdDir::Ref &cfaIfd();
const IfdDir::Ref &mainIfd();
const IfdDir::Ref &exifIfd();
const MakerNoteDir::Ref &makerNoteIfd();
virtual ::or_error _getRawData(RawData &data, uint32_t options) override;
// call to decrompress if needed from _getRawData()
virtual ::or_error _decompressIfNeeded(RawData &, uint32_t);
private:
IfdDir::Ref m_cfaIfd; /**< the IFD for the CFA */
IfdDir::Ref
m_mainIfd; /**< the IFD for the main image
* does not necessarily reference
* the CFA
*/
IfdDir::Ref m_exifIfd; /**< the Exif IFD */
MakerNoteDir::Ref m_makerNoteIfd; /**< the MakerNote IFD */
IfdFile(const IfdFile &) = delete;
IfdFile &operator=(const IfdFile &) = delete;
};
}
}
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0))
tab-width:2
c-basic-offset:2
indent-tabs-mode:nil
fill-column:80
End:
*/
#endif